Every three centuries, a force of pure destruction awakens. Kuiba arrives with the cycle, and when it does, coalitions of gods and mortals scramble to eliminate it before the devastation begins. But in 1664, their assassination fails. The entity slips away, embedding itself within a child named Manji, waiting dormant as he grows. Manji burns with ambition. He trains relentlessly under his master's guidance, driven by a singular obsession: become the strongest warrior alive. When word spreads that armies across the land are mobilizing against Kuiba, Manji sees his chance. He and his master enlist without hesitation, convinced they're joining humanity's greatest fight. Neither realizes the truth. The enemy Manji hunts with such fervor lives inside him. As his power grows and his reputation spreads, his path converges with a terrible realization: the destruction he's sworn to prevent might demand the sacrifice of everything he is. Facing this revelation becomes his real battle.